News for hackers. Stuff that matters.

A comment on Is air conditioning making cities hotter?. Parent comment

Re:Is air conditioning making cities hotter? by wolverine876 on Sunday September 10, 2023 @08:24PM (#37461444)
Why silver and not white?
[ Parent | on HN ]
Re:Is air conditioning making cities hotter? by crazygringo on Sunday September 10, 2023 @10:41PM (#37462230)
Good question. I can't easily find an answer, but this page at least describes the type of silver roof common on old NYC buildings:

https://flatroofdoc.com/silver-coating-protecting-a-rubber-r...

Elsewhere I find a claim that the aluminum paint used was a 20th century thing, but now white paint is preferred as being more reflective.

[ Parent | on HN ]